RE: [stella] Weird Donkey Kong disassembly prob

Subject: RE: [stella] Weird Donkey Kong disassembly prob
From: "Dennis Debro" <ddebro@xxxxxxxxxxxxx>
Date: Sat, 3 Apr 2004 09:18:48 -0500
Hi there,

> Paul Slocum wrote:
> > So I did a file diff on the original Donkey Kong ROM and the one
> produced
> > from the disassembly.  I found 6 differences in the file, and all were
> > because the original game reads from input ports using $30 as the base
> > input address and vcs.h puts the base at $00.  I changed vcs.h to use
> the
> > base address $30, and then the game worked fine on a real 2600.  I have
> no
> > idea why.

If you change the base address then you might also have to change the
ClearGameRAM routine.

Right now it stores #$00 in PF1+64,x.

Looks like I might have to do another post with this updated :-)

Take care,

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